Biological Molecules: DNA replication and Genetic code

Question 1

What enzyme unwinds the double helix …

Answer 1

DNA Helicase

Question 2

What enzyme moves along each of the separated DNA strands …

Answer 2

DNA Polymerase

Question 3

DNA Polymerase does what …

Answer 3

Joins the free activated nucleotides to the complimentary bases with phosphodiester bonds to form a new backbone

Question 4

A single DNA strand acts as a

Answer 4

Template for a new polynucleotide strand

Question 5

A new DNA strand is made up of one new and one old strand this is called …

Answer 5

Semi-conservative replication.

Question 6

A wrong base leads to changes in the nucleotide sequence these are called …

Answer 6

Mutations

Question 7

One gene is a section of ____
The DNA code is a _____ code
One code is made up of ___ bases is called a ______

Answer 7

DNA
Triplet
3
Codon

Question 8

The genetic code is

Answer 8

Universal - all organisims use the same code

Question 9

One sequence of bases codes for one sequence of _____ ____

Each codon codes also codes for one

Answer 9

Amino acids

Question 10

The genetic code is degenerate
x_x different combinations
___ different codons
more than one codon can code for the same_____ ___

Answer 10

4

Amino acid